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Specific Process Knowledge/Thermal Process/Oxidation/Wet oxidation C1 furnace: Difference between revisions

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The Wet oxidation by Anneal Oxide Furnace(C1) can be used for growing silicon dioxide by using steamer, which gives a very good film uniformity.
'''
==Test of the wet oxidation by steamer==
'''
'''
====Purpose====
'''
To study the effect of the process temperature, growth time and steamer flow on the silicon dioxide thinkness and the percent of film non-uniformity.   
'''
====Experimental setup====
'''
The boat was fully filled with dummy wafers, and there are three tested wafers per run. The three tested wafers were placed at slot number 6, 15 and 24.   
'''Pressure:'''  Atmosphere
'''Temperature:''' 1000, 1050, 1100 C
'''Time:''' 15, 180, 360, 720 minutes
'''Steamer Flow Rate:''' 10, 17.5, 25 L/min
'''Anneal:''' Same Temperature for 20 minutes with N2: 6 SLM
'''Test Wafers:''' N-Type <100> No RCA Clean